Home / 21,081.43-29,068.67-14,370.98

Finding the Fourth Proportional to 21,081.43, 29,068.67 and 14,370.98

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Solution

The fourth proportional to 21,081.43, 29,068.67 and 14,370.98 is: 19,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.43 : 29,068.67 = 14,370.98 : x
  2. Step 2: Convert to fraction form
    21,081.43/29,068.67 = 14,370.98/x
  3. Step 3: Cross multiply
    21,081.43x = 29,068.67 × 14,370.98
  4. Step 4: Simplify right side
    21,081.43x = 417,745,203.34
  5. Step 5: Solve for x
    x = 417,745,203.34/21,081.43
  6. Step 6: Final answer
    x = 19,815.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.